Bulk convert control files. (#19986)

```
function Convert-Control {
    Param($full)
    .\vcpkg.exe format-manifest $full
    $root = $full.Substring(0, $full.Length - 7) # CONTROL
    $new = $root + 'vcpkg.json'
    $content = Get-Content -Raw $new
    $asJson = ConvertFrom-Json $content -AsHashtable -Depth 100
    $oldVersion = $asJson['port-version']
    if ($null -eq $oldVersion) {
        $oldVersionFull = $asJson['version-string']
        Write-Host "Got version $oldVersionFull"
        $match = [System.Text.RegularExpressions.Regex]::Match($oldVersionFull, '^(.+)-(\d+)$')
        if ($match.Success -and -not [System.Text.RegularExpressions.Regex]::IsMatch($oldVersionFull, '^\d\d\d\d-\d\d-\d\d$')) {
            $newFullVersion = [string]$match.Groups[1].Value
            $oldVersion = [int]$match.Groups[2].Value
            Write-Host "newFullVersion $newFullVersion oldVersion $oldVersion"
            $newVersion = $oldVersion + 1
            $asJson['version-string'] = $newFullVersion
            Write-Host "Previous version for $full extracted from version field -- setting version-string $newFullVersion and port-version $newVersion"
        } else {
            Write-Host "No previous version for $full -- setting 1"
            $newVersion = 1
        }
    } else {
        $newVersion = [int]$oldVersion + 1
        Write-Host "New version for $full : $newVersion"
    }

    $asJson['port-version'] = $newVersion

    $content = ConvertTo-Json $asJson -Depth 100
    Set-Content -Path $new -Value $content
    .\vcpkg.exe format-manifest $new
}

Get-ChildItem ports\CONTROL -Recurse | Foreach-Object {
    Convert-Control $_.FullName
}

git commit -am "this message"
.\vcpkg.exe x-add-version -all
git commit -a --amend
```

16 files changed, 80 insertions, 0 deletions

diff --git a/versions/u-/uchardet.json b/versions/u-/uchardet.json
index 40dc30d1b..e773544ad 100644
--- a/versions/u-/uchardet.json
+++ b/versions/u-/uchardet.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "074fd1696e7c47ef9dce162bfad50572a8d766f1",
+      "version-string": "2020-04-26",
+      "port-version": 1
+    },
+    {
       "git-tree": "1e9bdf5a783f1453fd1a4330f42e7e0ca1f07eb7",
       "version-string": "2020-04-26",
       "port-version": 0
diff --git a/versions/u-/umock-c.json b/versions/u-/umock-c.json
index d9fc76fd5..ec6028e36 100644
--- a/versions/u-/umock-c.json
+++ b/versions/u-/umock-c.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "b34153650a29eb81f88e48f53bd06ca05d4383c4",
+      "version-string": "2020-06-17",
+      "port-version": 2
+    },
+    {
       "git-tree": "10a9af0e9e3e4d0a7ab3a5819943e4d609677c1a",
       "version-string": "2020-06-17-1",
       "port-version": 0
diff --git a/versions/u-/unicorn-lib.json b/versions/u-/unicorn-lib.json
index 87c3daf48..d37bc36cc 100644
--- a/versions/u-/unicorn-lib.json
+++ b/versions/u-/unicorn-lib.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "a79eb0ae5746d8c2c2ebbd68557baf5975193ac8",
+      "version-string": "2020-03-02",
+      "port-version": 1
+    },
+    {
       "git-tree": "f011cbffdfdd9b295141b51bb3da0a40af0d3848",
       "version-string": "2020-03-02",
       "port-version": 0
diff --git a/versions/u-/unicorn.json b/versions/u-/unicorn.json
index aed2e3317..f71f2b683 100644
--- a/versions/u-/unicorn.json
+++ b/versions/u-/unicorn.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "5126bae583b1f4d7d512b4bc06d799da0cd664be",
+      "version-string": "2020-09-14",
+      "port-version": 1
+    },
+    {
       "git-tree": "c7f12f98aceb87089db977ee201850fef601bc64",
       "version-string": "2020-09-14",
       "port-version": 0
diff --git a/versions/u-/units.json b/versions/u-/units.json
index 57f7754e5..9b8d38b2d 100644
--- a/versions/u-/units.json
+++ b/versions/u-/units.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "4b254a4139e2d70522a90a640601abdd97cdbce3",
+      "version-string": "2.3.1",
+      "port-version": 1
+    },
+    {
       "git-tree": "2db2d9f6afa63b919c6112b56d39b4609370fa4e",
       "version-string": "2.3.1",
       "port-version": 0
diff --git a/versions/u-/unixodbc.json b/versions/u-/unixodbc.json
index 26c23273c..ba0873b1e 100644
--- a/versions/u-/unixodbc.json
+++ b/versions/u-/unixodbc.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "c08774000aaa495036e36835e7a473251718d82d",
+      "version-string": "2.3.7",
+      "port-version": 3
+    },
+    {
       "git-tree": "10efe80ac302d39b15d3e8bd3755ff0386e413f6",
       "version-string": "2.3.7",
       "port-version": 2
diff --git a/versions/u-/unrar.json b/versions/u-/unrar.json
index 21effa3ba..4d2dcb5c2 100644
--- a/versions/u-/unrar.json
+++ b/versions/u-/unrar.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "31f7c1900da6148793b6b10c1b7be7b5e80d4172",
+      "version-string": "5.8.1",
+      "port-version": 1
+    },
+    {
       "git-tree": "30b1a0167a19316d64249e79132098e02a8a4d3f",
       "version-string": "5.8.1",
       "port-version": 0
diff --git a/versions/u-/urdfdom-headers.json b/versions/u-/urdfdom-headers.json
index 96dfb0ea2..149af41f3 100644
--- a/versions/u-/urdfdom-headers.json
+++ b/versions/u-/urdfdom-headers.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "557188bd804b7c57c882f39710ca21deb1b91db5",
+      "version-string": "1.0.5",
+      "port-version": 2
+    },
+    {
       "git-tree": "5dd339affc1eeaab090a5052621566424cee912e",
       "version-string": "1.0.5",
       "port-version": 1
diff --git a/versions/u-/urdfdom.json b/versions/u-/urdfdom.json
index 0d9abef58..bcefd4e53 100644
--- a/versions/u-/urdfdom.json
+++ b/versions/u-/urdfdom.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "1022fc5895356fb9cd1c37767cf2397e4edfd415",
+      "version-string": "1.0.4",
+      "port-version": 4
+    },
+    {
       "git-tree": "c8509aadcb49f4193730203193f79f32d4176400",
       "version-string": "1.0.4",
       "port-version": 3
diff --git a/versions/u-/usbmuxd.json b/versions/u-/usbmuxd.json
index 5e7bb417d..04dc3433b 100644
--- a/versions/u-/usbmuxd.json
+++ b/versions/u-/usbmuxd.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "072dd356dfeda50c73780a204db5f5f6224cd35c",
+      "version-string": "1.2.235",
+      "port-version": 1
+    },
+    {
       "git-tree": "d48f5f4611e4a59ccafc8c4dbb9ec1db1344994c",
       "version-string": "1.2.235",
       "port-version": 0
diff --git a/versions/u-/usd.json b/versions/u-/usd.json
index 0c0d12a5d..1c7e2f2ff 100644
--- a/versions/u-/usd.json
+++ b/versions/u-/usd.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "44bef511fe3c249b1579ab696b8bd7e82147b788",
+      "version-string": "20.08",
+      "port-version": 1
+    },
+    {
       "git-tree": "31c9d55a54024d0bc130a9f8547d1c64d4a3aed4",
       "version-string": "20.08",
       "port-version": 0
diff --git a/versions/u-/usrsctp.json b/versions/u-/usrsctp.json
index dd87fe247..4e7271e13 100644
--- a/versions/u-/usrsctp.json
+++ b/versions/u-/usrsctp.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "fd25f487883b7ccbba50c32203eb96c18cd9338f",
+      "version-string": "0db9691",
+      "port-version": 1
+    },
+    {
       "git-tree": "a2a0f34f91d797a31af55376db7524f3aed863dc",
       "version-string": "0db9691",
       "port-version": 0
diff --git a/versions/u-/utf8h.json b/versions/u-/utf8h.json
index 9d5df795c..9551f2eea 100644
--- a/versions/u-/utf8h.json
+++ b/versions/u-/utf8h.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "9cb92a16c8bbfc76bc505b90f55d116ea789c49e",
+      "version-string": "2020-06-14",
+      "port-version": 1
+    },
+    {
       "git-tree": "721728b5f4b4695d5cec09fc53b59d4f879142a9",
       "version-string": "2020-06-14",
       "port-version": 0
diff --git a/versions/u-/utfz.json b/versions/u-/utfz.json
index 5a6a9e40d..db788b6ca 100644
--- a/versions/u-/utfz.json
+++ b/versions/u-/utfz.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "2897d5bfecd8b5fad871a476cfba4c24f45144cd",
+      "version-string": "1.2",
+      "port-version": 2
+    },
+    {
       "git-tree": "b1c36a09a7ddb7b39b5136e2c2be1dc7974bea1a",
       "version-string": "1.2-1",
       "port-version": 0
diff --git a/versions/u-/uthenticode.json b/versions/u-/uthenticode.json
index bc6b140be..bca2a57b8 100644
--- a/versions/u-/uthenticode.json
+++ b/versions/u-/uthenticode.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "8c815664232505dde8a5dd299d4ad562f47b7d43",
+      "version-string": "1.0.4",
+      "port-version": 1
+    },
+    {
       "git-tree": "be0c3da6f7d93aa3a5252b03adc09ffa8105eaf8",
       "version-string": "1.0.4",
       "port-version": 0
diff --git a/versions/u-/uvw.json b/versions/u-/uvw.json
index 9d2629a51..95a51f901 100644
--- a/versions/u-/uvw.json
+++ b/versions/u-/uvw.json
@@ -1,6 +1,11 @@
 {
   "versions": [
     {
+      "git-tree": "fc9230cd12ff7d556e700053798f20e07283954d",
+      "version-string": "2.7.0",
+      "port-version": 1
+    },
+    {
       "git-tree": "b41eff8a3d196467693d35957280cad3be6a7f4b",
       "version-string": "2.7.0",
       "port-version": 0